1 /* $NetBSD: fenv.c,v 1.2 2017/03/22 23:11:09 chs Exp $ */ 2 3 /*- 4 * Copyright (c) 2015 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Christos Zoulas. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 #include <sys/cdefs.h> 32 __RCSID("$NetBSD: fenv.c,v 1.2 2017/03/22 23:11:09 chs Exp $"); 33 34 #include "namespace.h" 35 36 #define __fenv_static 37 #include <fenv.h> 38 39 #ifdef __weak_alias 40 __weak_alias(feclearexcept,_feclearexcept) 41 __weak_alias(fedisableexcept,_fedisableexcept) 42 __weak_alias(feenableexcept,_feenableexcept) 43 __weak_alias(fegetenv,_fegetenv) 44 __weak_alias(fegetexcept,_fegetexcept) 45 __weak_alias(fegetexceptflag,_fegetexceptflag) 46 __weak_alias(fegetround,_fegetround) 47 __weak_alias(feholdexcept,_feholdexcept) 48 __weak_alias(feraiseexcept,_feraiseexcept) 49 __weak_alias(fesetenv,_fesetenv) 50 __weak_alias(fesetexceptflag,_fesetexceptflag) 51 __weak_alias(fesetround,_fesetround) 52 __weak_alias(fetestexcept,_fetestexcept) 53 __weak_alias(feupdateenv,_feupdateenv) 54 #endif 55 56 #if defined(__GNUC_GNU_INLINE__) && !defined(__lint__) 57 #error "This file must be compiled with C99 'inline' semantics" 58 #endif 59 60 extern inline int feclearexcept(int __excepts); 61 extern inline int fegetexceptflag(fexcept_t *__flagp, int __excepts); 62 extern inline int fesetexceptflag(const fexcept_t *__flagp, int __excepts); 63 extern inline int feraiseexcept(int __excepts); 64 extern inline int fetestexcept(int __excepts); 65 extern inline int fegetround(void); 66 extern inline int fesetround(int __round); 67 extern inline int fegetenv(fenv_t *__envp); 68 extern inline int feholdexcept(fenv_t *__envp); 69 extern inline int fesetenv(const fenv_t *__envp); 70 extern inline int feupdateenv(const fenv_t *__envp); 71